Alright, I am at lost and need help. I am trying to install Leviton DW15 with remote ( three-way ). At the hot box I have Black, White, Red and one black and white tied together and on the second location, I have Black, Red, and White.

@Syfy14 as mentioned in your other post your options are very limited since you don’t have a neutral in either of your switch boxes. See the “Other wiring configurations that are not supported with GE 3-way switches” section in the first post for your options.

First, thanks for putting together this FAQ page. I’ve learned a lot just by reading the posts. After all this reading I felt confident enough that I can figure out which set up I have. After opening up the boxes, I am not quite sure which set up I have. I believe it is “Light between switches #1” but the electrician who wired my house must have done something funky because the colors don’t quite match.

In the secondary, it is strange that the white wire is connected to the black screw. I tested it and that wire does not have power. The black and red get power one at a time depending on the switch positions when off. My guess is that the white neutral wire goes to the light and somehow completes the circuit.

In the primary I have two sets of 3 wire cables. One black goes to the black terminal and is wrapped in tape. It is the line and I also tested it. A black and red go out as switch wires and I am assuming are the same ones that end up in the secondary. The weird thing is that there is a red coming into the box which is capped together with the white going out of the box.

Three sets of wires on the top. Middle set is from the removed switch.
The left set has the black line (wrapped in tape) go into the black terminal of the switch, white line capped with another neutral and red line capped with white line going out.

Right set of wires has black and red connected to the brass terminals and the white line capped with the red from the left set.

The other white wire is capped with a white wire from another unused switch

Does this happen to power or used to power a ceiling fan? I suspect you don’t have light between fixture and that you have line and load in the first box. Typically in ceiling fan installations you run 14-3 so you can switch fan and light separately, hence the red being hooked up to the white wire which is sending the load to your other switch black screw where first switch black wire on black screw is your line from breaker.

You can follow the “line-switch-load-switch-1” instructions above where the red wire hooked up to the white wire if your load. Black wire with tape is your line.

There is no fan in this setup at all. The lights are in the basement. The switch with just one set of wires is on top of the stairs, and the other switch with lots of wires is at the bottom of the stairs.

Disconnect the taped black wire from the switch and verify that the white bundle and that wire have power as I suspect that is your line. The red wire currently hooked up to the white wire should be your load. You can verify this with a single on off switch by hooking up the taped black wire and this red wire to see if the light turns on. If so then you have all wires in this box to make the “line-switch-load-switch-1” instructions work.

Unfortunately, the short of it is you don’t have a neutral available. In the diagram above, you have power from the breaker entering at the light. The issue is the 2-wire run from the switch to the light. You’d need three wires there to add a neutral to the switches.